Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 76-80.
Previous Articles Next Articles
A large open-pit mine is dominated by oxidized ore. With the deepening of mining，the ore yield of oxidized ore decreases year by year，while that of primary ore increases year by year. In order to fur⁃ ther improve resource utilization and beneficiation efficiency，a series of technical research has been carried out，such as optimization of stope blasting design，matching of crushing parameters and equipment capabili⁃ ties，and implementation of process transformation，so as to realize the optimal particle size supply of crush⁃ ing process，and realize the effective recovery and utilization of hanging wall ore while ensuring the explod⁃ ing instead of breaking. At the same time，by optimization of the grinding classification unit，the processing capacity of the oxidized ore processing process has been greatly improved，the "magnetic separation-gravity separation" has dumped the tail of the mine in advance，greatly improved the properties of the selected ore， and the reduction of the circulation volume of the process has further improved the production efficiency， providing a strong support for the enterprise to increase the production increment，reduce the cost and in⁃ crease the efficiency.
